Photographic-copying apparatus



April 29, 1930. A. w. WISNER 1,756,111

PHOTOGRAPHI G COPYYING APPARATUS April 29, 1930. A. w. wlsNE-R 1,756,111

PHOTOGRAPHI C COPYING APPARATUS Filed Dec. 5, 1925 A:a sheets-smet 2 iPatented Apr. 29, 1930' PivrEN'r OFFICE W. WISNER, OF EIEAGOIYIIA,VWASHINGTON PHOTOGRAPHIC-COPYING APPARATUS Application ala December 5,192s. serial No; 678,641'.

The object of my invention is to: provide a convenient and compactportable apparatus for reproducing photographically such objects aswritten and printed matter, records,

letters, maps, drawings and the like, and especially an apparatusadapted to project the image on a sensitized film-ribbon.

A further object of my invention is to provide simple means preferablyelectrically operated, for moving predetermined lengthsof filmsuccessively across the-shutter of the light projecting element, of theapparatus.

A further object of my invention is to provide simple means whereby anumber of photographic copies of any printed matter, or

the like may be taken, successively, by the op- Y erating of an electricswitch located on the exterior of the housing containing the film movingdevices, and thus conveniently accessible to the operator.

A still further object is to provide a photographic copying apparatusadaptable, with only a slight adjustment, for printing positive copiesof any matter from the negative I attain these objects of my inventionin a photographic copying apparatus comprising a housing containingrolls for carrying and winding the lm, and means for holding forexposure over the shutter of the camera lens,a section of the ilm, andmeans for moving sections of predetermined length of tilmV successivelythrough said iilm-holding means, including an operative connection fromthe film pulling roller to the said lm winding roll, and a ratchet wheelcarried by the shaft of said iilm pulling roller provided with a lever:tulcrumed adjacent said ratchet wheel and carrying a pawl engaging thelatter, and actuated by a solenoid connected to said operating lever anda switch located on the exterior of said housing in the electric circuitof said'solenoid.

The foregoing and incidental features of my invention are hereinafterfully/described with/reference to the accompanying drawings, in whichFig. 1 shows a perspective view of my pho- 50 tographic apparatus with aportion of the the housing and discloses the electromagnetic vhousingbroken -away to disclose the mechanism containedtherein.

Fig. 2 shows a perspective view similar to Fig. 1 except taken from theopposite side of means for operating the film.

Fig. 3 shows a fragmentary plan view taken ort the line 3-3 of Fig. 1,illustrating diagrammatically the shutter of the camera and the leverfor operating the latter.

Fig. 4 shows a transverse section taken through Figure l, andillustrates further details of construction; l p

Fig. 5 shows a perspective View of the filmguide of my'invention;

' Fig. 6 shows a perspective view` of the {ilmguide, similar to Fig. 5illustrating further details of construction.

My photographic apparatus comprises a housing 3 mounted in anyconvenient manner over a table on which the matter to'be photographedmay be suitably arranged and held in place.

The housing 3 is light proof, its opposite lateral sides 16 and 64 areremovable and a vertical longitudinal partition 3a is provided arrangedadjacent the side 64.

The larger of the two chambers provided by the said partition houses thelm and film exposing means. Inner chambers 17 and 18 are provided ateach end of said larger chamber, the iirst enclosing a spool 19 mountedon a shaft 19t, the shaft being supported on the partition 3a, thelatter inner chamber 18 encloses a similar spool 20 mounted on a shaft2()a which is also supported by the partition 3a, and extends throughthe partition into the smaller longitudinal chamber.

A film 21 wound on the spool 19 passes through a slot 22 in the chamber17 and through a lilm tensioning and guiding device 23, Fig. 5, which isspaced above an aperture 24" by supports 25, and comprises a horizontalsection mortised as at 24 to receive the lilm, and provided with anaperture 24a in a'line- 95 ment with the aperture 24b located over alens 12 seated in the licor of the housing 3.

The lilm tensioning and guiding device 23, Fig.46 comprises a squaresection 26 hinged at its sides to a lm guiding means and provided with aplate 27 attached thereto by a flat spring 28, fixed at its center tothe plate 27 and the two ends of the spring extend throughslots 28a inthe section 26, so as to make the plate 27 more or less adjustable toany pressure thereon.

The lm tensioning device 23 when in an operative position lies over thefilm guiding means and the spring mounted plate 27l bears against thefilm by the weight of the section 26, thus holding the film securelyagainst the aperture 24a.

The lens 12 in the floor of the housing is arranged in accuratealinement with the apertures 24a, 24b and the film framed by the saidaperture. The lens is provided with a suitable shutter 45 and anoperating lever 451L for said shutter extending through a slot in thepartition 3a into the said smaller longitudinal chamber.

A shaft 61a is supported by and extending through the partition adjacentto the lfilm guide is provided with two rollers 60 and 61 spaced apartso that pins 29 arranged on the peripheries of the rollers engageperforations 30 provided in the usual manner on edges of the film ribbon21.

Idling rollers 46 and 47 are mounted on shafts fixed to an arm 48supported by the partition 3a and are adapted to bear against the underside of the film ribbon to hold the ribbon firmly against the rollers 60and 61 by a flat spring 49 which bearsagainst the arm 48 and holds thesaid rollers in position.

The film ribbon then passes through a slot 50 into the inner chamber 18and onto the spool 20.

The actuating means for moving and eX- posing the film are provided inthe smaller of the longitudinal chambers. Upon the ex-V tremity of theshaft 20a, on the other end of which is mounted the film winding spool20, is provided a sheave 35, and on the shaft 61a on the other end ofwhich is fixed the rollers 60 and 61 is provided a toothed disc 31 and asheave 37, the latter connected by a belt 36 to the said sheave 35.

An operating arm 33 is pivoted as at 34, and a coil spring 41 isanchored at 41a to the side of the partition 3a and the other-end isfixed to the upper extremity of the operating arm 33 as is also a rod 40which is connected to the plunger 39 of a solenoid 38. The upper portionof the arm 33 bears against a stop 33b which is an eccentric discadapted to be manually rotated and thus limiting the arm 33 in itsmovement and the amount of film to be moved at each rotation, and a pawl32 is fixed to the arm 33 to engage the teeth on the disc 31. The lowerend of the operating arm bears againstea sliding lever 44, which in turnbears against the -lever 45a, which actuates the shutter 45.

A switch 43 shown digrammatically is provided in the electrical circuitconnecting the solenoid and the' source of power 42, as for instance astorage` battery.

The operation of my device is as follows:

The lateral side 16 of the housing 3 is removed and the spool 19 loadedwith film is mounted on the shaft 19, and the film ribbon is threadedthrough the slot 22 into the film guide 24 and under the film tensioningdevice 23.

The film is then inserted under the film moving rollers 60 and 61 andbetween the idling rollers 46 and 47 so that thepins 29 will engage theperforations 30 in the edges of the lm ribbon, after which the film isthreaded through the slot 50 into the inner chamber 18 and onto the filmwinding spool 20.

After the camera is loaded the side 16 is replaced, and the switch 43provided for actuating the solenoid, which may be located at anyconvenient place 0n the outside of the camera, is closed, and thesolenoid actuated to withdraw the rod 40 and move the operating arm 33forward against the tension of the spring 41.

lThe pawl 32 during this movement will engage the toothed disc 31 androtate the shaft 61a, on the other end of which are mounted the filmmoving rollers 60 and 61. At the same time by means of the belt 36 overthe sheaves 37 and 35, the latter being mounted on a shaft 2Oa on theother end of which is mounted the film winding spool 20, will besimultaneously rotated so as to wind the film as it is moved forward bythe rollers 60 and 61.

When the solenoid is released, the spring 41 will return the operatingarm 33 to its former position, which is limited in itsmovement bytheeccentric stop 33", and thus the amount of film moved during eachoperation may be adjusted, and the lower end 33a of the lever 33 willmove toward the sliding lever 44, which will actuate lever 45a of theshutter 45, to open and close the shutter 45, whereby an exposure of thesection of the film before the lens will have been made.

Thus when a photograph is to be taken, it is only necessary to close theswitch 43 and a fresh section of film will be moved before the lens bythe rollers 60 and 61 and the film winding spool 20 actuated by the arm33 and the pawl 32, and the arm 33 will operate the shutter and theobject in the table will have been photographed efiiciently, quickly,and cheaply, and my photographic copying apparatus will be ready for thenext operation without further adjustment, which operation maybe'repeated until the film ribbon is entirely used.

I claim:

1. A photographic copying apparatus of the character described,comprising a housing provided with a lens and shutter therefor saidhousing containing rolls for carrying and winding the film, and meansfor holding,

for exposure over the shutter of the cameralens, a section of the film,means for moving sections of predetermined length of film successivelythrough said film-holding means, said film-moving means comprising aiilmpulling roller, an operative connection from the film-pulling rollerto the said Elm-winding roll, a ratchet-wheel carried by the shaft ofsaid film-pulling roller, a lever-fulcrumed adjacent said ratchet-wheeland carrying a pawl engaging with the latter, and an operativeconnection between said lever and sai-d shutter.

2. A photographic copying apparatus of the character described,comprising a housing provided with a lens and shutter therefor, saidhousing containing rolls for carrying and winding the film, and meansfor holding, for exposure over the shutter lof the cameralens, a sectionof the film, means for moving sections of predetermined length of filmsuccessively through said film-holding means, said ilm-moving meanscomprising a filmpulling roller, an operative connection from thefilm-pulling roller to the said film-winding roll, a ratchet-wheelcarried by the shaft of said film-pulling roller, a lever-fulcrumedadjacent said ratchet-Wheel and carrying a pawl engaging with thelatter, a stop limiting the movement of said lever, said stop comprisingan eccentric disc adjacent the said lever, and an operative connectionbetween said lever and said shutter.

' 3. A photographic copying apparatus of the character described,comprising a housing provided with a lens and shutter therefor, saidhousing containing rolls for carrying and winding the lilm, and meansfor holding, for exposure over the shutter of the camera-lens, a sectionof the film, means for moving sections of predetermined length of filmsuccessively through said film-holding means, said film moving meanscomprising a filmpulling roller, an operative connection from thefilm-pulling roller to the said film-Winding roll, a ratchet-wheelcarried by the shaft of said film-pulling roller, a lever fulcrumedadjacent said ratchet-wheel and carrying a pawl engaging with thelatter, and a sliding bar operatively connecting said lever with saidshutter.

l. A photographic copying apparatus of the character described,comprising a housing provided with a lens and shutter therefor,

, said housing containing rolls for carrying and Winding the film, andmeans forholding, for exposure over the shutter of the cameralens, asection of the Elm, means for moving sections of predetermined length offilm successively through said film-holding means, said film-movingmeans comprising a lmpulling roller, an operative connection from thelm-pulling roller to the said film-Winding roll, a ratchet-Wheel carriedby the shaft of said film-pulling roller, a lever-fulcrumed adjacentsaid ratchet-wheel and carrying a pawl engaging with the latter, a stoplimiting the movement of said lever, said stop comprising an eccentricdisc adjacent the said lever, and a sliding bar operatively connectingsaid lever with said shutter.

5. A photographic copying apparatus of the character described,comprising a bousing provided with a lens and shutter therefor, saidhousing containing rolls for carrying and Winding the film, and meansfor holding, for exposure over the shutter of the camera-lens, a Sectionof the film, means for moving sections of predetermined length of lmsuccessively through said film-holding means, said film moving meanscomprising a lmpulling roller, an operative connection from thefilm-pulling roller to the said film-winding roll, a ratchet-wheelcarried by the shaft of said film-pulling roller, a lever fulcrumedadjacent said ratchet-wheel and carrying a pawl engaging with thelatter, an operative connection between said lever and said shutter, anda solenoid connected to and operating said lever and a switch, locatedon the exterior of said housing, in the electric circuit of saidsolenoid.

6. A photographic copying apparatus of the character describedcomprising a housing provided with a lens and shutter therefor, saidhousing containing rolls for carrying and Winding the film, and meansfor holding, for exposure over the shutter of the camera-lens, a sectionof the film, means for moving sections of predetermined length of filmsuccessively through said film-holding means, said film-moving meanscomprising a film-pulling roller, an operative connection from thefilm-pulling roller to the said filmwinding roll, a ratchet-wheelcarried by the shaft of said film-pulling roller, a lever-fulcrumedadjacent said ratchet-Wheel and carrying a pawl engaging with thelatter, a stop 4limiting the movement of said lever, said stopcomprising an eccentric disc adjacent the said lever, an operativeconnection between said lever and said shutter, and a solenoid connectedto and operating said lever and a switch, located on the exterior ofsaid housing, in the electric circuit of said solenoid.

7. In a photographic copying apparatus of the character described,film-moving means comprising a film-pulling roller, a rachetwheelcarried by the shaft of said film-pulling roller, a lever-fulcrumedadjacent said rachet-wheel and carrying apawl engaging with the latter,an operative connection between said lever and said shutter, comprisinga sliding bar operatively connecting said lever with said shutter, and asolenoid connected to and operating said lever and a switch, located onthe exterior of said housing, in the electric circuit of said solenoid.

8. In a photographic copying apparatus of the character described,film-moving means comprising a film-pulling roller, a rachet- Wheelcarried by the shaft of said film-pulling roller, a lever-fulcrumedadjacent said rachet-Wheel and carrying a paWl engaging With the latter,a stop limiting the movement of said lever, said stop comprising aneccentric disc adjacent the said lever, an operative connection betweensaid lever and said shutter, comprising a sliding bar operativelyconnecting said lever With said shutter, and a solenoid connect-ed toand operating said lever and a switch, located on the exterior of saidhousing, in the electric circuit of said solenoid.

9. A photographic copying apparatus of the character described,comprising a housing provided With a lens and shutter therefor, saidhousing containing rolls for carrying and Winding the film, and meansfor holding, for exposure over the shutter of the camera lens, a`section of the lm, means for moving sections of predetermined length offilm successively through said filrn-holding means, said film-movingmeans comprising 'a film-pulling roller, an operative connec tion fromthe film-pulling roller to the said film-Winding roll, a rachet-Wheelcarried by the shaft of said film-pulling roller, a lever fulcrumedadjacent said rachet-Wheel and carrying a pawl engaging With the latter,means for limiting the movement of said lever, and an Operativeconnection between said lever and said shutter.

ADRAN 'W'. WISNER.

